Anchoring device



Jan. 11 ,1927.

R. E. SHEAL ANCHORING DEVICE Filed Sept. 10, 1924 Patented Jan. 11 1927.

UNITED STATES ROBERT E. sHEAL, E CLEVELAND, OHIO.

ANCHORING DEVICE.

Application' filed September 10, 1924. Serial No. 736,820.

This invention relates to hoisting and conveying machineryyof the traveling bridge type and has to do with means for anchoring thev traveling structurewhen in. astationary position, such for-example as that illustrated in the Letters vPatent of P. J. Fickinger, No. 1,319,996, dated October 28, jl919, although it will be understood that 'my improvements may be applied" to any structure of this nature designed to move alonga fixed path such as ore bridges, unloading machinery, and the .like. v

' A traveling structure of, this nature may be of great'size and considerable weight and consequently have such momentum that if it once becomes started "by wind pressure on its superstructure or from any other cause it is likely to disregard all anchoring -.provisions even when moving at lowspeed.

c My invention is not designed to stop the movement of the structure when in motion but has for its object the provision of new, improved, and; simplified mechanism for y securing it rigidly against becoming accidentally set in motion; the provision of new and simplified means for operating and manipulating the securing'devices; the provision of a deviceof' this nature'which can be made and assembled in the shop and afterward sold and applied as a unit to existing bridges; the provision of a structure whereby the necessary strength can be obtained with less Strain than heretofore;-while further objects and advantages of the invention will become apparent asthe description. proceeds. More specifically this invention consists of an improvement upon the device contained in my Patent No. 1,450,735, issuedzApril 3, 1923, in respect of lightness, convenience of manipulation, and ease of installation.

In the drawings accompanying and form ing a part of this application Fig. 1 is a side elevation of my improved anchoring device showing the mode of its application to a bridge; Fig. 2 is an end elevation of the device shown in Fig. .1; Fig. 3is a horizontal sectional View corresponding to the line 83 of Figs. 1 and 2 and looking downwardly; Fig. 4c is a top plan view of my improved anchoring mechanism, the operating Wheels being shown in section; and Fig. 5 is a detail sectional view through one of the trunnions whereby the adjusting screws are supported.

A bridge ofthe type here intended coinanchoring prises a of upright legs-or towers connected by a suitable truss work. Each of these legs or towers is provided with a suitable number of supporting wheels engaging a runway along which the device is movable. horizontal sill girders 1-1 constituting; the

end ofone ofthe legs or towers and provided with carrying wheels 22 running on tracks 38. ,Any suitable or desirable means'may be employed for propelling-this bridge, preferably comprising a rack 4 lengthwise f of the runway and cooperating with suitable driving means as set forth in the Fickinger patent above mentioned, since 1 such-rack lends itself with particular. convenience to the operation of my locking dev ce, although so far as this device is concerned'it is immaterial whether the same engages the rack or some other form of abutment carriedby the runway, and whether if such rack be employed, it have any other function than this securingone.

To the girders 11 near their ends I attach two cross pieces 5-5, and between these cross pieces I. secure two spaced parallel sills 6 6 constituting a narrow-frame located inside the limits of the girders 11.

Carried bythese sills is an upwardly proof some type, here comprising uprights 7 and braces 8. To the up jecting frame work o'f'this frame work is aflixed a base per end the controlling mechaplate .10 on which nism is'mounted. Q

I have shown'hereina pair ofspaced raversing the sills 66 is a pivot pin 12- on. which are mounted two links 13 which project beyond the region of the wheels 2 where they are pivoted to the endsof an- .oth-er cross pin 14. This last pin is journaled'in the side plates l5-15 of a massive locking spud or anchor, the lower ends of these plates'being securely fastened to a tooth-ed engaging member 16, here illustrated as formed for engagement with the rack 4, although its shape-depends upon the character ofthe device with which it is to cooperate. At their upper ends these plates are traversed by another cross pin 17 Projecting from the forward face of the base platelO are two pairs of spaced brackets 20 20, one pair above the other, and journaled between the brackets of eachpair is a horizontal trunnion 21-formed with a diametral hole 22 in which is journa'led the shank 23 of a massive screw 24. The upper most screw projects approximately horizon- Y tally and engages the cross pin 17 through which it passes being suitably threaded thereto, while the lowermost screw pro1ects downwardly at a sharp angle where it IS thread-ed into the cross pin let. The uppermost screw is provided adjacent the trunnion 21 with a miter gear 25 meshing with a companion gear 26 carried by the horizontal shaft 27 whose inner end is journaled in a socket 28 formed in the end of the trunnion and whose outer end is journaled in a bracket 29 carried by the base plate 10. Bigidly secured to the outer end of the shaft 2? is a hand wheel 30 by which it can be operated; while rotat-ively sleeved upon the shaft 27 between the wheel 50 and the bracket 29 .is a second larger hand wheel 31 to whose hub is fastened a pinion 32 meshing with a spur gear 33 carried by a horizontal shaft 34 whose inner end is provided with a miter gear 35 meshing with a miter gear 36 carried by the lower screw. The upper edges of the sills 6 serve as supports for a horizontal metal plate 40 which overhangs the anchor at each side constituting a platform for the operator, its edge being here shown as stiffened by an angle iron 41.

Manipulation of the wheel 31 raises or lowers the pin l l through the agency of the corresponding screw, and with it moves the anchor. The pitch of this screw is so chosen that the weight :of the anchor will be safely supported thereby, although it is desirable that its pitch, coupled with the weight of the rim of the wheel 31, should cause the wheel to revolve for a substantial interval in lowering the anchor into'place when once set spinning by the operator during the op eration of setting the anchor, Manipulation 40 i y scribed comprising a frame adapted to be at tached to the girders of a movable bridge, a pair of links pivoted to said frame, an upright anchor pivoted to said links, an irreversible screw operatively connected .to said anchor in direct lifting relation, a hand wheel, and gearing" operatively connecting said wheel and screw.

2. An anchoring device for the purpose described comprising a frame, a framework located above the same, an upright elongated anchor member, a pair of cross pins carried of an elongated anchoring member, link devices pivoted to said anchoring member near one end and to said frame at a point near said runway, a pair of elongated screws pivoted to said frame upon horizontal axes at a greater distance from said runway, the pivot axes being perpendicular to the axes of the screws, screw threaded members carried by said anchoring member adjacent to its upper and lower ends respectively with which members said screws engage, a pair of hand wheels, and gearing between sald hand wheels and screws respectively.

4. In mechanism of the character de-' carried by said frame at a distance abovesaid runway approximately equal to the length of said anchoring member, a pair of horizontal trunnions ournaled therein, long screws journaled in each trunnion perpendicular to its axis, one of said screws engaging said cross pin and the other engaging said second threaded member, rotatable shafts coaxial with said trunnions, gearing between said shafts and screws, and means for rotating said shafts independently.

5. In mechanism of the character described, the combination with a frame and a runway along which the same is movable, of an elongated anchoring member mounted in an approximately upright position, link means connecting the lower end of said member with a lower part of the frame, a pair of horizontal trunnions pivoted to said frame approximately level with the top of said member, a long screw journaled in each trunnion perpendicular to its axis and operatively connected to opposite ends of said member, a horizontal shaft coaxial with each trunnion, gearing between each shaft and the corresponding screw, a pair of concert tric hand wheels movable independently of each-other, and operative connectionsbetween each wheeland one of said shafts.

In testimony whereof, I hereunto afiix my signature.

. ROBERT E. SHEAL. 

